Say I have a command
foo which takes a filename argument:
foo myfile.txt. Annoyingly,
foo doesn't read from standard input. Instead of an actual file, I'd like to pass it the result of another command (in reality,
pv, which will cat the file and output a progress meter as a side effect).
Is there a way to make this happen? Nothing in my bag of tricks seems to do it.
foo in this case is a PHP script which I believe processes the file sequentially).
I'm using Ubuntu and Bash
EDIT Sorry for the slightly unclear problem description, but here's the answer that does what I want:
pv longfile.txt | foo /dev/stdin
Very obvious now that I see it.